CN1278376C - Electrode-free lamp system and its bulb - Google Patents
Electrode-free lamp system and its bulb Download PDFInfo
- Publication number
- CN1278376C CN1278376C CNB031016847A CN03101684A CN1278376C CN 1278376 C CN1278376 C CN 1278376C CN B031016847 A CNB031016847 A CN B031016847A CN 03101684 A CN03101684 A CN 03101684A CN 1278376 C CN1278376 C CN 1278376C
- Authority
- CN
- China
- Prior art keywords
- bulb
- resonator
- unit
- conductor
- envelope space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
- H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/044—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
Abstract
A bulb in an electrodeless lamp system comprises: a bulb unit having an envelope space in which luminous material excited by electric field to form plasma and generate light is filled; and two or more conductors installed in the envelope space so that ends of the conductors face each other.
Description
Technical field
The present invention relates to a kind of electrodeless lamp system, and relate in particular to the bulb that is used in this electrodeless lamp system.
Background technology
The device of electrodeless lamp system for throwing light on by the microwave formation electric field that utilizes in the bulb unit, in this bulb unit, luminescent material is by being lighted by the formed plasma of electric field.
Usually, when electrodeless lamp extinguishes, electrodeless lamp system can be lighted after through special time (tens of second～a few minutes) once more, this is because inert gas, that is, the high pressure that together is filled into the buffer gas in the bulb unit with luminescent material causes and can not guarantee to be used to form the mean free path that containing of plasma can electronics.
Especially, at xenon Xe as under the situation of buffer gas, luminous efficiency Billy with the raising of argon Ar gas about 5%.Yet the collision cross section of Xe is bigger, therefore, is difficult to discharge under high pressure conditions.
Therefore, in the prior art, in order to shorten lighting the time once more of electrodeless lamp system, high wind directly blows on the bulb unit, with the cooling bulb and reduce pressure in the bulb unit, yet, produced following problem, as because attachment device and cost increase, the reliability of attachment device, blocked by attachment device around the space utilization and the light of bulb unit.
Equally, under the situation of small-scale light sources, that is, under the situation of the bulb unit that is used for point-source of light (arc gap is less than 2mm), must have and be used for initial luminous servicing unit.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of electrodeless lamp system and bulb thereof, can easily realize lighting once more whereby, and the size of bulb unit is reduced greatly.
In order to realize purpose of the present invention, as implementing at this and broadly describing, provide a kind of bulb of electrodeless lamp system, it comprises: have the bulb unit of envelope space, wherein fill the luminescent material by electric field excitation, to form plasma and luminous; And two conductors, they are installed in the envelope space, and are arranged to face end each other.
In addition, in order to realize purpose of the present invention, provide a kind of electrodeless lamp system, it comprises: the microwave generator that is used to produce microwave; Be connected on the microwave generator resonator with the microwave that produces in the resonance microwave generator; Be installed in the bulb unit in the resonator, wherein fill the luminescent material that forms plasma by electric field excitation, so that luminous with envelope space; And two conductors, they are installed in the envelope space, and face end each other.
Above-mentioned and other purposes of the present invention, feature, aspect and advantage will be able to clear from the description of this invention with reference to the accompanying drawings.
Description of drawings
Be included in this with to further understanding of the present invention and be herein incorporated the accompanying drawing that constitutes this specification part and show embodiments of the invention, and together explain principle of the present invention with describing.
Among the figure:
Fig. 1 is the partial cross section view that illustrates according to the part of electrodeless lamp system of the present invention;
Fig. 2 is the cross-sectional view that first embodiment of electrodeless lamp system shown in Figure 1 is shown;
Fig. 3 is the cross-sectional view that the conductor that is coated with heat-resistant component in the bulb unit shown in Figure 2 is shown;
Fig. 4 is illustrated in the cross-sectional view that is used for according to the coaxial type resonator in the bulb unit of electrodeless lamp system of the present invention;
Fig. 5 is the cross-sectional view that illustrates according to second embodiment of the bulb unit of electrodeless lamp system of the present invention;
Fig. 6 is the cross-sectional view that the bulb unit shown in Figure 5 that is coated with heat-resistant component is shown;
Fig. 7 is the cross-sectional view that illustrates according to the 3rd embodiment of the bulb unit in the electrodeless lamp system of the present invention;
Fig. 8 is the cross-sectional view that the bulb unit shown in Figure 7 that is coated with heat-resistant component is shown; And
Fig. 9 and Figure 10 are the cross-sectional views that illustrates according to the 4th and the 5th embodiment of the bulb unit in the electrodeless lamp system of the present invention.
Embodiment
Will be in detail with reference to the preferred embodiment of the present invention, its example is shown in the drawings.
As shown in Figure 1, electrodeless lamp system according to the present invention comprises: the microwave generator 20 that is used to produce microwave; Be connected on the microwave generator 20 resonator 40 with the microwaves that produce in the resonance microwave generator 20; The luminescent material by the electric field excitation in the resonator 40 is wherein filled in the bulb unit 10 that be installed in the resonator 40, has envelope space, to produce plasma and luminous; And two conductors 11, they are installed in the envelope space 12, make the end face with each other.
In addition, microwave generator 20 can be installed with resonator 40, or installs in addition, and microwave generator 20 can be connected on the resonator 40 by waveguide 30, so that the microwave that produces from microwave generator to resonator 40 emissions.
Luminescent material can be metal, halogen compounds, sulphur or caesium (Se), and it can send the light (light wavelength of being sent can change according to the difference of luminescent material) such as luminous ray.In addition, comprise the initial luminous buffer gas that is used for of Ar, Xe, Kr etc., and such as mercury be used to help the discharge catalytic material of initial discharge and luminescent material together to fill carry out easily so that light, perhaps control the characteristic of the light that sends.
The envelope space 12 of sealing is formed in the bulb unit 10, and bulb unit 10 is made by the material that has high light-transmission coefficient and little dielectric absorption such as the pottery of quartz or light-transmissive etc.In addition, when the size of the envelope space 12 of sealing hour, as in the bulb unit that is used for point-source of light, the thickness that it is desirable to bulb unit 10 is greater than two times of the width of envelope space 12, so that improve the easiness made and the reliability of bulb unit 12.
Two (or a plurality of) conductors 11 can be installed, and be arranged to face with each other in the end of conductor, so that between end conductor, form highfield, as shown in Figure 2.Conductor 11 is made by the material such as tungsten, and it has high-fire resistance, even so that also can keep the physical form of conductor under the high temperature of hundreds of degree in envelope space 12.In addition, as shown in Figure 3, conductor 11 can be coated with heat-resistant component 13 on its outer surface, to prevent that conductor is owing to the luminescent material reaction in direct and the envelope space 12 damages.When considering to be connected and during thermal coefficient of expansion, heat-resistant component 13 can be identical with the material of bulb unit 10, as be the pottery of quartz or light-transmissive with bulb unit 10; Because consider the thermal expansion of conductor 11, heat-resistant component 13 can be formed with overdose space.
On the other hand, based on the shape of bulb unit 10 or conductor 11, conductor 11 can more effectively converge electric field.In order to make the maximum that converges of electric field as shown in Figure 5, can be shown on the end of conductor 11 as Fig. 2 and 3 and form pinnacle 11a.Certainly, heat-resistant component 13 can be coated on the conductor 11, as shown in Figure 6.
Equally, can change the shape of bulb unit 10, so that improve electric field converging in envelope space 12, and the shape of bulb unit 10 can form the figure of eight, shown in Fig. 7 and 8, rather than common spherical or circular.In addition, the end of conductor 11 is installed on the both sides, occupies the sweep of (take) envelope space 12 between them, thus, the part that electric field is converged narrows down and produces plasma and converges phenomenon, then accelerated to light once more, and can control the size of light source.
Equally, the gap between the conductor 11 can be controlled in the bulb unit 10 with figure of eight, and the shape of control envelope space 12.
As shown in Figures 9 and 10, the distance between conductor 11 ends is directly proportional with the size of envelope space 12, therefore, can improve and light characteristic once more based on the change in size of bulb unit 10.Especially, under the situation of small-scale light sources, that is, be used under the situation of point-source of light (arc gap is less than 2mm), can improve and light characteristic once more by reducing distance between each end.
That is, as shown in Figures 9 and 10, the distance between conductor 11 ends is directly proportional with the size of the size of bulb unit 10 or envelope space 12, therefore, can produce the suitable electric field that is used for initially lighting or is used for lighting once more and converge phenomenon.Especially, as shown in figure 10, conductor 11 can be installed in the bulb unit 10, and without the heat-resistant component 13 of additional protection conductor 11 usefulness.
On the other hand, as shown in Figure 4, can comprise feeding of microwaves device unit 50 according to electrodeless lamp system of the present invention, it is connected on the microwave generator 20 and extends in the resonator 60, and the microwave that is used for producing in the microwave generator 20 is transmitted into resonator 60.At this moment, one in the conductor 11 is connected on the feeding of microwaves device unit 50, and another can be connected on the resonator 50.
Unaccounted Reference numeral 71 is represented speculum, and the light that are used for feasible 10 generations from the bulb unit are towards specific direction, and Reference numeral 72 is represented filter element (mesh member), its transmitted ray, but stop microwave.In addition, shown in Fig. 5 to 10, be connected to part 14 on the conductor 11 and be illustrated under the situation that bulb unit 10 is used for electrodeless lamp system shown in Figure 4, conductor 11 is connected respectively to the state on resonator 60 and the feeding of microwaves device unit 50.
Have said structure details are as follows according to the work of electrodeless lamp system of the present invention:
At this moment, buffer gas makes initially lighting of bulb unit 10 or light once more easily and carry out, and simultaneously, highfield converges between conductor 11, makes initially to light or light once more easily and carry out.
Equally, in having the electrodeless lamp system of structure shown in Figure 4, highfield is formed in the middle of resonator 60 and the feeding of microwaves device unit 50.In addition, the conductor 11 that is connected on feeding of microwaves device unit 50 resonator 60 together forms highfield, initially lights thus or lights once more and can realize easily.
According to electrodeless lamp system of the present invention, the conductor that faces with each other is installed in the bulb unit, makes electric field converge on end conductor, so form highfield, has accelerated the velocity of discharge of electronics.Thus, time of initially lighting of electrodeless lamp system or the time of lighting can shorten once more.
Owing to can implement the present invention in a variety of forms not deviating under marrow of the present invention or the principal character prerequisite, therefore, should be understood that the foregoing description and can't help previously described any details and limit, unless otherwise specified, but should in its marrow that appended claims limits and scope, extensively understand, therefore fall within the scope of claims and the border or all changes within this scope and the border equivalent and improve and all forgive by appended claims.
Claims (18)
1. bulb that is used for electrodeless lamp system comprises:
Have the bulb unit of envelope space, wherein filled luminescent material, to form plasma and luminous by electric field excitation; And
Two conductors, they are installed in the envelope space, so that the end of conductor faces with each other.
2. bulb as claimed in claim 1, wherein, the bulb unit is the ceramic material of quartz or light-transmissive.
3. bulb as claimed in claim 1, wherein, conductor is made by tungsten.
4. bulb as claimed in claim 1, wherein, conductor is coated with heat-resistant component.
5. bulb as claimed in claim 4, wherein, heat-resistant component is by applying with bulb unit identical materials.
6. bulb as claimed in claim 1, wherein, the distance between the end conductor is directly proportional with the size of envelope space.
7. bulb as claimed in claim 1, wherein, the thickness of bulb unit is greater than two times of the envelope space width.
8. bulb as claimed in claim 1, wherein, the bulb unit is spherical.
9. bulb as claimed in claim 1, wherein, bulb unit and envelope space form 8 fonts.
10. bulb as claimed in claim 1, wherein, electrodeless lamp system utilizes the coaxial type resonator, and in the conductor one is connected on the resonator, and another connects feeding of microwaves device unit, and this feeding of microwaves device unit is installed the bulb unit in the resonator securely.
11. an electrodeless lamp system comprises:
Be used to produce the microwave generator of microwave;
Be connected to the resonator on the microwave generator, be used for the microwave that resonance produces from microwave generator;
Be installed in the resonator and the bulb unit with envelope space, fill luminescent material in this envelope space, this material forms plasma with luminous by the electric field in the resonator; And
Two conductors, they are installed in the envelope space, so that the end of conductor faces with each other.
12. system as claimed in claim 11 also comprises the waveguide that is connected on the microwave generator, it is used for the microwave from microwave generator is sent to resonator.
13. system as claimed in claim 11, wherein, conductor is coated with heat proof material.
14. system as claimed in claim 13, wherein, heat-resistant component is coated with and bulb unit identical materials.
15. system as claimed in claim 13, wherein, heat-resistant component is the ceramic material of quartz or light-transmissive.
16. system as claimed in claim 11, wherein, the distance between the end conductor is directly proportional with the size of envelope space.
17. system as claimed in claim 11, wherein, the thickness of bulb unit is greater than two times of the width of envelope space.
18. system as claimed in claim 11, also comprise feeding of microwaves device unit, it is connected on the microwave unit and extends in the resonator, the microwave that is used for producing in the microwave generator sends to resonator, wherein in the conductor is connected on the resonator, and another is connected on the feeding of microwaves device unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0065349A KR100498307B1 (en) | 2002-10-24 | 2002-10-24 | Reluminescence acceleration apparatus for plasma lighting system |
| KR65349/2002 | 2002-10-24 | ||
| KR65349/02 | 2002-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1492472A CN1492472A (en) | 2004-04-28 |
| CN1278376C true CN1278376C (en) | 2006-10-04 |
Family
ID=32105643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031016847A Expired - Fee Related CN1278376C (en) | 2002-10-24 | 2003-01-14 | Electrode-free lamp system and its bulb |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7253555B2 (en) |
| JP (1) | JP4294998B2 (en) |
| KR (1) | KR100498307B1 (en) |
| CN (1) | CN1278376C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100531908B1 (en) * | 2003-09-03 | 2005-11-29 | 엘지전자 주식회사 | Concentration apparatus for micro wave in plasma lighting system |
| KR100700549B1 (en) * | 2005-09-30 | 2007-03-28 | 엘지전자 주식회사 | Lamp with electrode |
| JP4714868B2 (en) * | 2005-10-20 | 2011-06-29 | 国立大学法人静岡大学 | Discharge lamp equipment |
| JP4761244B2 (en) * | 2005-10-20 | 2011-08-31 | 株式会社小糸製作所 | Discharge lamp and light source device |
| JP2009532823A (en) * | 2006-01-04 | 2009-09-10 | ラクシム コーポレーション | Plasma lamp with electric field concentration antenna |
| JP4872454B2 (en) * | 2006-05-23 | 2012-02-08 | ウシオ電機株式会社 | Electromagnetic excitation light source device |
| JP4725499B2 (en) * | 2006-12-06 | 2011-07-13 | セイコーエプソン株式会社 | Microwave electrodeless lamp, lighting device, projector |
| JP2011090851A (en) * | 2009-10-21 | 2011-05-06 | Luxim Corp | Electrodeless plasma lamp, and method of generating light with use of electrodeless plasma lamp |
| CN201829464U (en) * | 2010-06-07 | 2011-05-11 | 潮州市灿源电光源有限公司 | Ceramic non-polar plasma light source |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US1676790A (en) * | 1922-04-18 | 1928-07-10 | Cooper Hewitt Electric Co | Electric lamp |
| US2148017A (en) * | 1937-02-19 | 1939-02-21 | Germer Edmund | Electrical discharge device |
| US3943401A (en) * | 1975-04-21 | 1976-03-09 | Gte Laboratories Incorporated | Electrodeless light source having a lamp holding fixture which has a separate characteristic impedance for the lamp starting and operating mode |
| NL7506655A (en) * | 1975-06-05 | 1976-12-07 | Philips Nv | SHORT-ARC DISCHARGE LAMP. |
| JPS57152663A (en) | 1981-03-18 | 1982-09-21 | Mitsubishi Electric Corp | Micro-wave electric-discharge light source device |
| JPS585960A (en) | 1981-07-03 | 1983-01-13 | Mitsubishi Electric Corp | Microwave discharging light-source device |
| US4480213A (en) * | 1982-07-26 | 1984-10-30 | Gte Laboratories Incorporated | Compact mercury-free fluorescent lamp |
| US4864194A (en) * | 1987-05-25 | 1989-09-05 | Matsushita Electric Works, Ltd. | Electrodeless discharge lamp device |
| DE3918839A1 (en) | 1988-06-20 | 1989-12-21 | Gen Electric | DISCHARGE LAMP HIGH INTENSITY |
| JP2561902B2 (en) | 1988-09-14 | 1996-12-11 | ウシオ電機株式会社 | Microwave-excited electrodeless arc tube and method for manufacturing the same |
| US5084654A (en) | 1990-05-23 | 1992-01-28 | General Electric Company | Starting aid for an electrodeless high intensity discharge lamp |
| JPH06260274A (en) | 1991-02-13 | 1994-09-16 | Okaya Electric Ind Co Ltd | Microwave sensor |
| US6020676A (en) * | 1992-04-13 | 2000-02-01 | Fusion Lighting, Inc. | Lamp with light reflection back into bulb |
| JP3069432B2 (en) * | 1992-06-15 | 2000-07-24 | 松下電工株式会社 | Electrodeless discharge lamp |
| US5965976A (en) * | 1992-07-28 | 1999-10-12 | Philips Electronics North America Corp. | Gas discharge lamps fabricated by micromachined transparent substrates |
| US5384515A (en) * | 1992-11-02 | 1995-01-24 | Hughes Aircraft Company | Shrouded pin electrode structure for RF excited gas discharge light sources |
| US5519285A (en) | 1992-12-15 | 1996-05-21 | Matsushita Electric Works, Ltd. | Electrodeless discharge lamp |
| US5811936A (en) | 1996-01-26 | 1998-09-22 | Fusion Lighting, Inc. | One piece microwave container screens for electrodeless lamps |
| US5923116A (en) * | 1996-12-20 | 1999-07-13 | Fusion Lighting, Inc. | Reflector electrode for electrodeless bulb |
| US6016031A (en) * | 1997-08-11 | 2000-01-18 | Osram Sylvania Inc. | High luminance electrodeless projection lamp |
| US6414436B1 (en) * | 1999-02-01 | 2002-07-02 | Gem Lighting Llc | Sapphire high intensity discharge projector lamp |
| DE19915617A1 (en) * | 1999-04-07 | 2000-10-12 | Philips Corp Intellectual Pty | Gas discharge lamp |
| JP3620371B2 (en) * | 1999-10-01 | 2005-02-16 | ウシオ電機株式会社 | High frequency excitation point light source lamp device |
| JP2001250512A (en) | 2000-03-07 | 2001-09-14 | Japan Storage Battery Co Ltd | Microwave driven electrodeless ceramic lamp |
| WO2002082501A1 (en) * | 2001-04-05 | 2002-10-17 | Fusion Lighting, Inc. | Electrodeless discharge lamps and bulb containing sulfur, selenium or tellurium |
-
2002
- 2002-10-24 KR KR10-2002-0065349A patent/KR100498307B1/en not_active IP Right Cessation
-
2003
- 2003-01-09 US US10/338,725 patent/US7253555B2/en not_active Expired - Fee Related
- 2003-01-14 CN CNB031016847A patent/CN1278376C/en not_active Expired - Fee Related
- 2003-04-09 JP JP2003105186A patent/JP4294998B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040036369A (en) | 2004-04-30 |
| JP4294998B2 (en) | 2009-07-15 |
| US20040080258A1 (en) | 2004-04-29 |
| CN1492472A (en) | 2004-04-28 |
| JP2004146338A (en) | 2004-05-20 |
| US7253555B2 (en) | 2007-08-07 |
| KR100498307B1 (en) | 2005-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20100222 |